文件自动按日期查询备份到网络盘中

@echo off 操作执行中
@echo off
net use z: \192.168.0.48software estData2014 "123456" /USER:administrator
set wd=%date:~0,4%%date:~5,2%%date:~8,2%
set str=erpdb1%wd%0800.bak
set strdy=dydb_n%wd%0800.bak
set filedy=i:dydb_n\%strdy%

set strwj=wjdb1%wd%0800.bak
set filewj=i:wjdb1\%strwj%

set strfz=fzdb_n%wd%0800.bak
set filefz=i:fzdb_n\%strfz%

set strjob=Jobdb5%wd%0800.bak
set filejob=i:Jobdb5\%strjob%   

del z:*.bak  
@echo on

echo --------  执行时间： %date% %time% --------     >> z:log.txt
echo 复制文件开始 >> z:log.txt
copy I:erpdb1\%str%  z:erpdb1.bak       >> z:log.txt
copy  %filedy% z:dydb_n.bak       >> z:log.txt
copy  %filewj% z:wjdb1.bak        >> z:log.txt
copy  %filefz% z:fzdb_n.bak       >> z:log.txt
copy  %filejob% z:Jobdb5.bak      >> z:log.txt
echo 复制文件结束 >> z:log.txt
echo       ---- %time%    >> z:log.txt